WO2021079949A1 - 回転アシスト具及びアシスト付き回転工具 - Google Patents

回転アシスト具及びアシスト付き回転工具 Download PDF

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Publication number
WO2021079949A1
WO2021079949A1 PCT/JP2020/039779 JP2020039779W WO2021079949A1 WO 2021079949 A1 WO2021079949 A1 WO 2021079949A1 JP 2020039779 W JP2020039779 W JP 2020039779W WO 2021079949 A1 WO2021079949 A1 WO 2021079949A1
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WO
WIPO (PCT)
Prior art keywords
rotating body
rotating
rotation
main body
shaft
Prior art date
Application number
PCT/JP2020/039779
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
陽一郎 濱元
Original Assignee
株式会社Ｆｒｅｅｐｏｗｅｒ Ｉｎｎｏｖａｔｉｏｎｓ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｆｒｅｅｐｏｗｅｒ Ｉｎｎｏｖａｔｉｏｎｓ filed Critical 株式会社Ｆｒｅｅｐｏｗｅｒ Ｉｎｎｏｖａｔｉｏｎｓ
Priority to EP20879183.0A priority Critical patent/EP4049792A4/en
Priority to US17/620,280 priority patent/US20220364608A1/en
Priority to CN202080044356.9A priority patent/CN114007815B/zh
Priority to CA3154531A priority patent/CA3154531A1/en
Publication of WO2021079949A1 publication Critical patent/WO2021079949A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/0705—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side
    • A47J43/0711—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side mixing, whipping or cutting tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08—Driving mechanisms
    • A47J43/082—Driving mechanisms for machines with tools driven from the upper side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/007—Attachments for drilling apparatus for screw or nut setting or loosening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0042—Connection means between screwdriver handle and screwdriver shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/68—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being made of rubber or similar material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
    • B62M1/105—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels using elastic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/66—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being metallic, e.g. in the form of coils

Definitions

  • the present invention relates to a rotation assisting tool capable of efficiently utilizing rotational energy input from the outside and an assisted rotating tool provided with the rotation assisting tool.
  • electric screwdrivers are used at construction sites in recent years to shorten work time and improve work efficiency, reduce the burden on workers, and save labor. ing.
  • This electric screwdriver is mainly used for tightening screws at construction sites, etc., and by connecting the output shaft of the motor and the screwdriver bit via a torsion coil spring, the impact caused by the reaction when tightening the screw is mitigated. It is known that the tightening torque of the screw can be stabilized.
  • the electric screwdriver is used not only for tightening the screw but also for removing it, and since the screwdriver bit rotates forward and reverse, the torsion coil spring is damaged due to the repeated load of both swings. There was a problem that it was easy to occur.
  • Patent Document 1 a torsion coil spring is connected in series so that the diameter becomes smaller when a torsion force in the screw tightening direction is received in the power transmission mechanism between the output shaft of the motor and the driver bit.
  • An electric driver is disclosed in which a non-fixed sleeve is fitted and arranged around a torsion coil spring while interposing.
  • the torsion coil spring is twisted and deformed in a direction in which the outer diameter becomes smaller only when the screw is tightened, and when the screw is removed, the deformation (expansion) is restricted by the non-fixed sleeve. Therefore, the repeated load of both swings does not act, and damage is less likely to occur. Further, since the outer diameter of the torsion coil spring hardly changes when the screw is removed (loosened), the rotation of the output shaft is easily transmitted to the driver bit, and the screw can be efficiently loosened with a strong force.
  • an electric screwdriver is convenient, it is mainly used by a trader or the like, and is not widely used in general households or the like.
  • the present invention has been made in view of such circumstances, and by providing a rotation assisting tool capable of efficiently transmitting rotational energy input from the outside and the rotation assisting tool, operational stability and rotation transmission are provided. It is an object of the present invention to provide a rotary tool with an assist which is excellent in labor saving and can effectively utilize input energy by improving the efficiency of the above.
  • the rotation assisting tool according to the first invention is a rotation assisting tool attached to the base side of a rotation shaft having an output unit or an input unit on the front side.
  • the second rotating body By rotating the first rotating body, the second rotating body rotatably held by the first rotating body in the forward and reverse directions, and the relative rotation of the first rotating body and the second rotating body.
  • It has an elastically deformed body that is elastically deformed and transmits rotation between the first rotating body and the second rotating body, and the base side of the rotating shaft is the first rotating body or the second rotating body. It is fixed to the rotating body.
  • the rotation assist tool transmits the rotational energy input to the first rotating body or the second rotating body to the second rotating body or the first rotating body via the elastic deformed body, and the second rotating body is used.
  • the first rotating body is provided with a main body portion formed with a rotating shaft mounting portion to which the base side of the rotating shaft is fixed and an outer peripheral portion of the main body portion.
  • the second rotating body has a plurality of first convex portions, and the second rotating body is provided on an outer cylinder portion that covers the outer periphery of the first rotating body and an inner circumference of the outer cylinder portion. It has one or a plurality of second convex portions that are alternately arranged with the convex portions of the above, and the elastic deformed body is arranged between each of the first convex portions and each of the second convex portions. Is preferable.
  • the first rotating body has a main body portion and one or a plurality of first convex portions provided on the outer periphery of the main body portion, and the second rotating body.
  • the rotating body has an outer cylinder portion that covers the outer periphery of the first rotating body on one side, and has a rotating shaft mounting portion on the other side to which the base side of the rotating shaft is fixed, and is inside the outer cylinder portion.
  • One or a plurality of second convex portions alternately arranged with the first convex portion are provided on the circumference thereof, and the elastic deformed body is provided between the first convex portion and the second convex portion, respectively. May be placed.
  • the first rotating body has a main body portion on which a rotating shaft mounting portion on which the base side of the rotating shaft is fixed is formed, and the main body portion includes the main body.
  • a plurality of arcuate space portions concentrically curved around the axial center of the main body portion are formed by penetrating the portions in the axial direction, and each of the space portions is formed on one side and the other side in the circumferential direction.
  • the elastically deformed body is housed, and the second rotating body is formed by rotating plates on one side and the other side which are arranged to face each other on both sides in the axial direction of the main body portion and in the circumferential direction of each of the space portions.
  • It has a plurality of connecting shafts that pass between the elastically deformed bodies accommodated on one side and the other side and penetrate each of the space portions to connect the rotating plate on one side and the rotating plate on the other side.
  • the base side of the rotating shaft penetrates the rotating plate on one side and is fixed to the main body portion, and the second rotating body rotates forward and reverse with respect to the rotating shaft and the first rotating body. It is preferable that it is possible.
  • the first rotating body has a main body portion that is externally inserted on the base side of the rotating shaft and is held so as to be rotatable forward and reverse, and the main body portion has the main body portion.
  • a plurality of arcuate space portions concentrically curved around the axis of the main body portion are formed through the main body portion in the axial direction, and each space portion is formed on one side and the other side in the circumferential direction.
  • Each of the elastically deformed bodies is housed, and the second rotating body is arranged on both sides in the axial direction of the main body portion, and is fixed to the rotating shaft on one side and the other side rotating plates, and the said.
  • Each space portion is passed through between the elastic deformed bodies housed on one side and the other side in the circumferential direction, and the rotating plate on one side and the rotating plate on the other side are connected. It may have a plurality of connecting shafts.
  • At least one set of guide means for moving the second rotating body toward one side of the first rotating body while rotating the second rotating body, or the first rotating body located on one side of the second rotating body It is more preferable to provide at least one set of guide means for moving the first rotating body toward the other side while rotating the first rotating body at the time of forward and reverse rotation.
  • the second rotating body when the second rotating body moves to one side of the first rotating body, the second rotating body causes the rotating shaft of the first rotating body.
  • the second rotating body can be provided with a pressed portion that is pressed toward the front side of the first rotating body when the first rotating body moves to the other side of the second rotating body.
  • a pressed portion that is pressed toward the tip side of the rotating shaft by the rotating body of the above can be provided.
  • the first rotating body has a main body portion in which a rotating shaft mounting portion on which the base side of the rotating shaft is fixed is formed on one side, and the second rotating body.
  • the body has an outer cylinder portion that covers the outer periphery of the first rotating body, and the elastically deformed body is spirally attached between the main body portion and the outer cylinder portion, and one side in the longitudinal direction is said. It is fixed to the inner peripheral surface of the outer cylinder portion, and the other side is fixed to the outer peripheral surface of the main body portion, and when the second rotating body rotates in the normal direction, it is deformed from the neutral state to the reduced diameter direction, and the second rotating body is deformed in the radial direction.
  • the first rotating body has a main body portion
  • the second rotating body has an outer cylinder portion covering the outer periphery of the first rotating body on one side. It has a rotating shaft mounting portion on the other side to which the base side of the rotating shaft is fixed, and the elastically deformed body is spirally attached between the main body portion and the outer cylinder portion in the longitudinal direction.
  • One side is fixed to the inner peripheral surface of the outer cylinder portion, and the other side is fixed to the outer peripheral surface of the main body portion.
  • the second rotating body can have a driving means connecting portion to which the rotation driving means is connected, and the first rotating body is connected to the rotation driving means. It is possible to have a drive means connecting portion.
  • the assisted rotary tool according to the second invention according to the above object is provided with the rotary assist tool according to the first invention on the base side of a rotary shaft having an output unit or an input unit on the front side.
  • the rotary shaft may be formed integrally with the rotary assist tool.
  • the elastically deformed body can be elastically deformed to store a part of the input energy to reduce the load at the time of initial movement, and the stored elastic energy is rotated by appropriately restoring the elastically deformed body during rotation. It is possible to reduce the input energy by converting it into energy and effectively using it, and even if the input energy becomes small or is about to be interrupted, the fluctuation of the output energy is suppressed and the rotation is stabilized. Can be done.
  • (A) is a plan view of the rotation assisting tool according to the first embodiment of the present invention, and (B) is an end view taken along the line A1-A1 of (A).
  • (A) is a cross-sectional view taken along the line A2-A2 of FIG. 1 (A)
  • (B) is a cross-sectional view taken along the line A3-A3 of FIG. 1 (A). It is a side view which shows the 1st rotating body of the rotation assisting tool.
  • (A) is a plan view showing a usage state of a rotary tool provided with the same rotation assist tool, and (B) is a B1-B1 line arrow viewing end view of (A).
  • (A) is a cross-sectional view taken along the line B2-B2 of FIG.
  • FIG. 4 (A), and (B) is a cross-sectional view taken along the line B3-B3 of FIG. 4 (A).
  • A) is a plan view of the rotation assisting tool according to the second embodiment of the present invention, and (B) is a C1-C1 line arrow viewing end view of (A).
  • A) is a cross-sectional view taken along the line C2-C2 of FIG. 6 (A), and (B) is a cross-sectional view taken along the line C3-C3 of FIG. 6 (A). It is a side view which shows the 1st rotating body of the rotation assisting tool.
  • FIG. 9 is a cross-sectional view taken along the line D3-D3 of FIG. 9 (A).
  • A) is a plan view of an assisted rotary tool provided with a rotation assist tool according to a third embodiment of the present invention, and (B) is an end view taken along the line E1-E1 of (A).
  • A) is a cross-sectional view taken along the line E2-E2 of FIG.
  • FIG. 11 (A), and (B) is a cross-sectional view taken along the line E3-E3 of FIG. 11 (A).
  • (A) is a plan view showing a usage state of the rotary tool with the assist, and
  • (B) is an end view of the F1-F1 line arrow of (A).
  • (A) is a cross-sectional view taken along the line F2-F2 of FIG. 14 (A)
  • FIG. 14 (B) is a cross-sectional view taken along the line F3-F3 of FIG. 14 (A).
  • (A) is a plan view of an assisted rotary tool provided with a rotation assist tool according to a fourth embodiment of the present invention, and (B) is a G1-G1 line arrow view end view of (A).
  • (A) is a cross-sectional view taken along the line G2-G2 of FIG. 16 (A)
  • (B) is a cross-sectional view taken along the line G3-G3 of FIG. 16 (A). It is a side view which shows the 2nd rotating body in the rotation assist tool of the rotary tool with the assist.
  • (A) is a plan view showing a usage state of the rotary tool with the assist
  • (B) is an end view of the H1-H1 line arrow of (A).
  • FIG. 19 (B) is a cross-sectional view taken along the line H3-H3 of FIG. 19 (A).
  • (A) is a plan view of an assisted rotary tool provided with a rotary assist tool according to a fifth embodiment of the present invention, and (B) is a partial vertical sectional view showing a state before the operation of the assisted rotary tool. Is. (A) is a partial vertical cross-sectional view showing the first operation of the assisted rotary tool, and (B) is a partial vertical cross-sectional view showing the second operation of the assisted rotary tool.
  • FIG. 5 is a plan view of a main part of a bicycle provided with a rotation assisting tool according to a seventh embodiment of the present invention.
  • (A) is a cross-sectional view taken along the line I1-I1 of FIG. 24, and (B) is a cross-sectional view taken along the line I2-I2 of FIG. 24.
  • It is a vertical sectional view of the main part of the rotation assisting tool which concerns on 8th Embodiment of this invention. It is a cross-sectional view of the rotation assisting tool.
  • the rotation assisting tool 10 according to the first embodiment of the present invention shown in FIGS. 1 (A), 2 (B), 2 (A), (B), and 3 is the rotation assisting tool 10 shown in FIGS. 4 (A), 4 (B), and FIG.
  • FIGS. 5A and 5B the input energy is efficiently transmitted to the rotating shaft 12 by being attached to the base side of the rotating shaft 12 having an output unit 11 similar to that of a flat-blade screwdriver on the front side. Is output.
  • FIGS. 5A and 5B the input energy is efficiently transmitted to the rotating shaft 12 by being attached to the base side of the rotating shaft 12 having an output unit 11 similar to that of a flat-blade screwdriver on the front side. Is output.
  • FIGS. 5A and 5B the input energy is efficiently transmitted to the rotating shaft 12 by being attached to the base side of the rotating shaft 12 having an output unit 11 similar to that of a flat-blade screwdriver on the front side. Is output.
  • the rotation assist tool 10 is held by the first rotating body 13 and the first rotating body 13 so as to be rotatable in the forward and reverse directions. It has a rotating body 14. Then, as shown in FIGS. 1 (B), 2 (A), 3, 4, 4 (B), and 5 (A), the base side of the rotating shaft 12 of the first rotating body 13 is fixed. It has a main body 16 on which the rotating shaft mounting portion 15 is formed, and a plurality of (three in this case) first convex portions 17 provided on the outer periphery of the main body 16.
  • the shape of the rotating shaft mounting portion 15 is formed, but the shape and size of the rotating shaft mounting portion can be appropriately selected according to the shape and size of the shaft fixing portion. Further, the rotating shaft mounting portion only needs to be able to fix the base side of the rotating shaft, and the fixing method can be appropriately selected.
  • the second rotating body 14 includes an outer cylinder portion 20 that covers the outer circumference of the first rotating body 13 and an outer cylinder. It has a plurality of (three in this case) second convex portions 21 provided on the inner circumference of the portion 20 and alternately arranged with the first convex portion 17. Then, as shown in FIGS. 2A and 5A, the elastic deformed body 22 is arranged between each of the first convex portions 17 and each of the second convex portions 21. In this embodiment, as shown in FIGS.
  • the deformed body 22 is attached, its shape and length can be appropriately selected, and for example, it can be attached intermittently in the longitudinal direction of the first convex portion. Further, elastic deformed bodies may be attached to the front and back surfaces of the second convex portion.
  • an elastomer is preferable, and a thermoplastic elastomer is preferably used, but synthetic rubber such as butadiene rubber, urethane rubber, and silicone rubber can also be used.
  • the number of the first and second convex portions can be appropriately selected, and may be one for each. Further, when the first and second rotating bodies have a plurality of first and second convex portions, the first and second convex portions are arranged at equal angular intervals.
  • the rotation assist tool 10 is elastically deformed by the relative rotation of the first rotating body 13 and the second rotating body 14, as shown in FIGS. 2 (A) and 5 (A).
  • the body 22 is elastically deformed, and rotation can be transmitted between the first rotating body 13 and the second rotating body 14.
  • the second rotating body 14 is held by the first rotating body 13 so as to be rotatable forward and reverse, but at the same time, it can move in the axial direction of the first rotating body 13. It has become.
  • the first rotating body 13 is located on one side (here, the left side) in the axial direction of the main body 16 (first rotating body 13).
  • a cylindrical first guide portion 24 that abuts on the inner peripheral surface of the outer cylinder portion 20 and the outer cylinder portion 20 on the other side (here, the right side) in the axial direction of the main body portion 16 (first rotating body 13). It has a columnar second guide portion 25 that abuts on the inner peripheral surface. Then, on the outer circumference of the second guide portion 25, as shown in FIGS. 2 (B), 3 and 5 (B), the second guide portion is viewed from the other side in the axial direction of the main body portion 16.
  • the first groove 26 curved clockwise from the other side of the 25 to one side, and the first groove 26 branched from the other side of the first groove 26 and curved counterclockwise toward one side of the second guide portion 25.
  • Three guide grooves 28 were formed in which the second grooves 27 were paired. Further, on the inner peripheral surface of the outer cylinder portion 20, three hemispherical protrusions 29 are formed in accordance with the positions of the other ends of the guide grooves 28. Each guide groove 28 and each protrusion 29 corresponding thereto constitutes a set of guide means 30.
  • each guide groove 28 and each protrusion 29 of the three sets of guide means 30 are engaged with each other, and the positive of the second rotating body 14 (in the initial position) located on the other side of the first rotating body 13.
  • the second rotating body 14 can be smoothly moved toward one side of the first rotating body 13 while rotating.
  • the clockwise rotation is forward rotation
  • each protrusion 29 of the three sets of guide means 30 By moving along the first groove 26 of each guide groove 28, the second rotating body 14 moves toward one side of the first rotating body 13 while rotating.
  • each protrusion 29 of the three sets of guide means 30 makes a second groove 27 of each guide groove 28.
  • the second rotating body 14 moves toward one side of the first rotating body 13 while rotating. That is, the second rotating body 14 located on the other side of the first rotating body 13 can move toward one side of the first rotating body 13 regardless of the rotation direction thereof.
  • an assisted rotary tool 31 provided with a rotary assist tool 10 on the base side of the rotary shaft 12 having an output unit 11 similar to that of a flat-blade screwdriver on the front side is used.
  • the minus screw is a right-hand screw. It was explained earlier that the output unit 11 is pressed against the split (minus type recess) of the head of the minus screw, and the second rotating body 14 is rotated clockwise on the other side of the first rotating body 13. As described above, the second rotating body 14 moves toward one side of the first rotating body 13 while rotating by the action of the guide means 30.
  • the second rotating body 14 can be rotated with almost no load. Then, when the second convex portion 21 comes into contact with the elastic deformed body 22, compression (elastic deformation) of the elastic deformed body 22 starts between the first convex portion 17 and the second convex portion 21. Each elastic deformed body 22 stores a part of input (rotational) energy while being compressed. When the amount of compression (elastic deformation amount) of the elastic deformed body 22 reaches a predetermined amount, the first rotating body 13 and the rotating shaft 12 fixed to the first rotating body 13 are integrated with the second rotating body 14. Then, it starts to rotate, and the minus screw can be tightened by the output unit 11.
  • the elastic deformed body 22 is compressed and restored, so that the elastic energy stored in the elastic deformed body 22 at the time of compression is converted into rotational energy at the time of restoration and rotated. Since the rotation of the shaft 12 is assisted, the load on the operator can be reduced and the tightening work can be performed smoothly.
  • the second rotating body 14 has a closing plate 32 that closes the other side of the outer cylinder portion 20, and the inner surface of the closing plate 32 ( On one side), a plate-shaped elastic member 33 made of synthetic rubber or the like is attached. Then, the second rotating body 14 finishes moving from the other side of the first rotating body 13 to one side, and the first rotating body 13 and the second rotating body 14 start to rotate integrally (B). ), The elastic member 33 is in contact with the other end surface 34 of the second guide portion 25. Therefore, the second rotating body 14 can press the first rotating body 13 toward the front side of the rotating shaft 12 with the second guide portion 25 (end surface 34) as the pressed portion, and thus is negative. The screw can be strongly tightened while being pushed in the axial direction by the output unit 11. The elastic member may be attached to the second guide portion 25 side.
  • the guide means 30 rotates one side of the first rotating body 13 while rotating the second rotating body 14.
  • the first rotation is performed while rotating the second rotating body 14. It can be moved toward the other side of the body 13. Therefore, in addition to continuing to rotate the second rotating body 14 in the same direction while the second rotating body 14 is located on one side of the first rotating body 13, only the second rotating body 14 is moved during the work. It is also possible to move the second rotating body 14 from one side to the other side of the first rotating body 13 without rotating the rotating shaft 12 and the first rotating body 13 in the reverse direction.
  • the elastic deformed body 22 can be repeatedly compressed, and the elastic energy stored in the elastic deformed body 22 is repeated. It can be used to efficiently tighten the minus screw.
  • the guide grooves 28 formed on the outer periphery of the second guide portion 25 in which the first and second grooves 26 and 27 are paired, and the protrusions 29 formed on the inner peripheral surface of the outer cylinder portion 20 are provided.
  • a guide groove may be formed on the inner peripheral surface side of the outer cylinder portion, and a protrusion may be formed on the second guide portion side.
  • the shape of the protrusion is not limited to hemispherical shape, and may be formed in a columnar shape, or a rotating body that rotates when the protrusion moves along the guide groove may be attached to the tip of the protrusion.
  • the number and arrangement of the guide means can be appropriately selected.
  • the guide means may be provided only on the first guide portion side, or may be provided on both the first guide portion side and the second guide portion side. Good.
  • the screw having various shapes such as a hexagon or a star, or the outer shape of the head is viewed in a plan view. Even if the screw or the like is formed in a polygonal shape such as a quadrangle or a hexagon, the tightening operation can be performed with an assisted rotary tool by selecting the shape of the output unit according to these shapes. Further, the assisted rotary tool can be used not only for tightening these screws but also for loosening them.
  • the assisted rotary tool basically, the rotation direction of the second rotating body 14 is only reverse rotation (counterclockwise).
  • the second rotating body 14 rotates while being rotated by the action of the guide means 30, as described above. It moves toward one side of the rotating body 13 of 1. Normally, when loosening the screw, a large force is required first, but the second rotating body 14 is rotated with almost no load until the second convex portion 21 comes into contact with the elastic deformed body 22. be able to. Then, when the second rotating body 14 is further rotated and the second convex portion 21 comes into contact with the elastic deformed body 22, the elastic deformed body 22 is placed between the first convex portion 17 and the second convex portion 21. Compression (elastic deformation) begins.
  • the elastic deformed body 22 can be elastically deformed with a small force while reducing the load at the time of initial movement, and the input (rotational) energy is input (rotational) energy while each elastic deformed body 22 is compressed. Can accumulate a part of.
  • the amount of compression (elastic deformation amount) of the elastic deformed body 22 reaches a predetermined amount, the first rotating body 13 and the rotating shaft 12 fixed to the first rotating body 13 become the second rotating body 14. It starts to rotate as a unit, and the screw can be loosened by the output unit 11.
  • the elastic deformed body 22 is compressed and restored, so that the elastic energy stored in the elastic deformed body 22 at the time of compression is converted into rotational energy at the time of restoration and rotated. Since the rotation of the shaft 12 is assisted, the operator can efficiently loosen the screw with a small force. At this time, if the screw is hard, the elastic energy stored in the elastic deformed body 22 becomes large, and the rotational energy generated when the compressed elastic deformed body 22 is restored also becomes large, so that the load on the operator is increased. The screw can be loosened easily and surely without causing it to loosen.
  • the second rotating body may be provided with a driving means connecting portion, and a rotating driving means such as an electric motor may be connected to the second rotating body to rotate the second rotating body.
  • a rotating driving means such as an electric motor
  • the rotation assist tool 10 can be attached to the base side of the rotating shaft having the input unit on the front side. In that case, the first rotating body can be rotated together with the rotating shaft by the rotational energy input from the input unit, and the rotation can be transmitted to the second rotating body via the elastic deformed body.
  • a blade or the like is attached to the outer periphery of the second rotating body as an output portion and an electric motor or the like is connected to the input portion, it can be used as a propeller, a screw or the like.
  • a handle is attached as an input part and the second rotating body (outer cylinder part) itself is used as a spool, or if a spool is attached to the second rotating body, the rotating shaft is rotated by the handle to make the spool.
  • the fishing line can be wound up and used as a reel for fishing. Further, if the same configuration is enlarged and electrified, it can be applied to a winch or the like.
  • the rotation assist tool 36 according to the second embodiment of the present invention and the assisted rotary tool 37 provided with the rotation assist tool 36 will be described.
  • the same reference numerals as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the difference in the configuration of the rotation assist tool 10 and the rotation assist tool 36 is that in the rotation assist tool 10, the rotation shaft mounting portion 15 is formed on the main body portion 16 of the first rotating body 13, whereas the rotation assist tool 10 is formed.
  • FIGS. 6 (A), 6 (B), 8 and 9 (A), (B) rotation of an electric motor or the like is performed on one side of the main body 39 of the first rotating body 38.
  • a second drive means connecting portion 41 to which the drive shaft 40 (see FIG. 9) of the drive means (not shown) is connected is formed, and as shown in FIGS. 6 and 9, the outer cylinder portion 20 is provided on one side.
  • the rotating shaft mounting portion 43 is formed on the other side (outside of the closing plate 32) of the rotating body 42.
  • the assisted rotary tool 37 has a rotary shaft mounting portion 43 of the rotary assist tool 36 fixed to the base side of the rotary shaft 45 having a drill-shaped output portion 44 on the front side. ,
  • the shape of the output unit can be appropriately selected.
  • the difference between the operation of the rotation assist tool 10 and the assisted rotary tool 31 and the operation of the rotation assist tool 36 and the assisted rotary tool 37 is that the rotation assist tool 10 and the assisted rotary tool 31 have a second rotating body 14
  • the rotation of the above was transmitted to the first rotating body 13 via the elastically deformed body 22, whereas in the rotation assist tool 36 and the rotating tool 37 with assist, FIGS. 7 (A), (B), and 10 (FIG. 10) As shown in A) and (B), the rotation of the first rotating body 38 is transmitted to the second rotating body 42 via the elastically deformed body 22.
  • the guide means 30 rotates the first rotating body 38 while rotating the other side of the second rotating body 42 when the first rotating body 38 located on one side of the second rotating body 42 rotates in the forward and reverse directions. Acts to move towards. Further, when the first rotating body 38 moves to the other side of the second rotating body 42, the closing plate 32 (elastic member 33) on the other side of the second rotating body 14 is moved by the first rotating body 38. It becomes a pressed portion that is pressed toward the tip side of the rotating shaft 45. At this time, the elastic member may be attached to the other side of the second guide portion of the first rotating body. The above difference is only in the path of transmission of rotation, and there is no difference in the obtained action and effect.
  • the first rotating body 38 is rotated by the rotating driving means, but a handle portion (handle) is provided on one side of the first rotating body instead of the driving means connecting portion. It is also possible to manually rotate the first rotating body.
  • the rotary tool 37 with assist is used, the tip of the output unit 44 is pressed against the object to be machined, so that the second rotating body 42 is fixed (the object to be machined acts as a resistance to rotate. Therefore, the first rotating body 38 can be rotated relative to the second rotating body 42 to deform (compress) the elastic deformed body 22.
  • the rotation assist tool 46 according to the third embodiment of the present invention and the assisted rotary tool 47 provided with the rotation assist tool 46 will be described.
  • the same reference numerals as those of the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted.
  • the rotary tool 47 with the assist provided with the rotary assist tool 46 shown in FIGS. 11 to 15 has a stirring blade shape on the front side.
  • the rotation assist tool 46 is attached to the base side of the rotation shaft 49 having the output unit 48 of the above. In the rotation assist tool 46, as shown in FIGS.
  • the first rotating body 50 has a main body portion 51 to which the base side of the rotating shaft 49 is fixed.
  • two detent projections 53 are provided on the outer periphery of the large diameter portion 52 on the base side of the rotating shaft 49.
  • the rotating shaft mounting portion 54 was formed at the axial center of the main body portion 51 in accordance with the shapes of the large diameter portion 52 and the detent projection 53, but the shape of the base side of the rotating shaft 49 should be appropriately selected.
  • the shape of the rotating shaft mounting portion can be appropriately selected accordingly.
  • the main body portion only needs to be able to fix the base side of the rotating shaft, and the fixing method can be appropriately selected.
  • the main body 51 penetrates the main body 51 in the axial direction and has a concentric shape centered on the axial center of the main body 51.
  • a plurality of (here, four places) arcuate space portions 56 curved in the shape are formed.
  • elastic deformed bodies 57 are housed on one side and the other side of each space portion 56 in the circumferential direction along the axial direction of the main body portion 51, respectively.
  • the material of the elastic deformed body 57 the same material as that of the elastic deformed body 22 is preferably used. Further, as shown in FIGS.
  • the second rotating body 59 in the rotation assist tool 46 is the rotating plates 60 and 61 on one side and the other side which are arranged to face each other on both sides in the axial direction of the main body 51.
  • the rotating plate 60 on one side and the rotating plate 61 on the other side are passed through each space portion 56 through between the elastic deformed bodies 57 accommodated on one side and the other side in the circumferential direction of each space portion 56. It has a plurality of connecting shafts 62 to be connected. Then, the base side (large diameter portion 52) of the rotating shaft 49 penetrates the rotating plate 60 on one side and is fixed to the main body portion 51, and the second rotating body 59 is the rotating shaft 49 and the first rotating body. It can rotate forward and backward with respect to 50.
  • a side portion of each elastic deformed body 57 on the connecting shaft 62 side (contact portion pressed by the connecting shaft 62). ) was formed with a small protrusion 64.
  • the shape of the small protrusions can be appropriately selected, and may be formed so as to form continuous ridges along the longitudinal direction of each elastic deformed body 57, or may be formed intermittently (divided into a plurality of portions). May be formed.
  • the shape is preferably hemispherical, conical or truncated cone (conical truncated cone), but is not limited thereto.
  • such a small protrusion can also be formed on the connecting shaft side.
  • the small protrusions By forming the small protrusions on the connecting shaft side, the force at the time of pressing is concentrated on the tips of the small protrusions, and the elastic deformed body can be efficiently compressed.
  • the small protrusion may be omitted depending on the elasticity (hardness) of the elastically deformed body.
  • the elastically deformed body is preferably formed in a columnar shape, but is not limited to this.
  • the first and second cylindrical portions 65 are on one side and the other side in the axial direction of the main body portion 51 of the first rotating body 50. 66 is formed, and as shown in FIGS.
  • the cylindrical first and second guide portions 67 and 68 are formed in contact with the inner peripheral surfaces of the first and second cylindrical portions 65 and 66, respectively. Then, on the outer periphery of the first guide portion 67, as shown in FIGS. 12 (B), 13 and 15 (B), the first groove 26 and the second groove 26 and the second groove 26 and the second groove 26 and the second Three guide grooves 28 in which the grooves 27 are paired are formed, and three hemispherical protrusions 29 are formed on the inner peripheral surface of the first cylindrical portion 65 according to the position of the other end of each guide groove 28.
  • Each guide groove 28 and each protrusion 29 corresponding thereto constitute a set of guide means 30.
  • the rotation assist tool 46 is an elastically deformed body on the connecting shaft 62 when the first rotating body 50 and the second rotating body 59 rotate relative to each other.
  • the 57 can be reliably elastically deformed, and rotation can be transmitted between the first rotating body 50 and the second rotating body 59. Therefore, according to the assisted rotary tool 47, a liquid (viscous fluid), a fluid, or the like can be agitated.
  • the output unit 48 receives resistance due to the influence of the viscosity of the object to be agitated and the rotation of the first rotating body 50 is hindered.
  • the elastic deformable body 57 can be deformed (compressed) by being relatively rotated.
  • the assisted rotary tool can be used for various purposes by changing the shape of the output unit.
  • the rotation assist tool 70 and the assisted rotary tool 71 provided with the rotation assist tool 70 according to the fourth embodiment of the present invention will be described.
  • the same reference numerals as those of the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted.
  • the difference in the configuration of the rotation assist tool 46 and the rotation assist tool 70 is that in the rotation assist tool 46, the rotation shaft mounting portion 54 is formed on the main body portion 51 of the first rotating body 50, and the main body portion 51 (first rotation). While the body 50) and the rotation shaft 49 were fixed, in the rotation assist tool 70, as shown in FIGS.
  • the first rotating body 72 A rotating shaft insertion hole 74 is formed in the main body 73 of the main body 73, and the main body 73 is externally inserted on the base side of the rotating shaft 75 and held so as to be rotatable forward and reverse, and is held on one side and the other side of the second rotating body 77.
  • the rotating plates 60 and 61 of the above are fixed to the rotating shaft 75.
  • two detent projections 53 are formed on the outer periphery of the other side of the rotating shaft 75 in the axial direction (here, the left side and the front side of the rotating shaft 75). Then, the rotating shaft mounting portion 78 was formed at the axial center of the rotating plate 61 on the other side according to the shapes of the rotating shaft 75 and the detent projection 53. Further, as shown in FIGS. 16, 17 (A) and 19 (B), a hexagonal columnar fitting is fitted on one side of the rotating shaft 75 in the axial direction (here, the right side and the base side of the rotating shaft 75).
  • the protrusion 79 was formed, and the rotary shaft fitting portion 80 was formed at the axis of the rotary plate 60 on one side according to the shape of the fitting protrusion 79.
  • the rotating shaft 75 can be reliably fixed to the second rotating body 77 (rotating plates 60, 61 on one side and the other side), but the fixing method can be appropriately selected.
  • the assisted rotary tool 71 has a Phillips screwdriver-shaped output unit 81 on the tip side of the rotary shaft 75, and the shape of the output unit can be appropriately selected. Further, the difference between the operation of the rotation assist tool 70 and the assisted rotary tool 71 and the operation of the rotation assist tool 46 and the assisted rotary tool 47 is that the rotation assist tool 46 and the assisted rotary tool 47 have a second rotating body 59. Was transmitted to the first rotating body 50 via the elastically deformed body 57, whereas in the rotation assist tool 70 and the rotating tool 71 with assist, as shown in FIGS. 17 and 20, the first rotating body 50 was transmitted.
  • the rotation of the rotating body 72 is transmitted to the second rotating body 77 via the elastic deformed body 57.
  • the end surface 82 on one side of the second guide portion 68 of the second rotating body 77 becomes the pressed portion.
  • the above difference is only in the path of transmission of rotation, and there is no difference in the obtained action and effect.
  • the first rotating body 72 is manually rotated, but the first rotating body is provided with a driving means connecting portion, and the rotating driving means is connected to the driving means connecting portion to be electrically rotated. It can also be configured.
  • the assisted rotary tool 84 provided with the rotary assist tool 83 shown in FIGS. 21 (A), 21 (B), 22 (A), and (B) has a rotary shaft 86 having a flat-blade screwdriver-shaped output unit 85 on the front side.
  • the rotation assist tool 83 is attached to the base side of the above.
  • the first rotating body 87 has a main body portion 89 in which a rotating shaft mounting portion 88 to which the base side of the rotating shaft 86 is fixed is formed on one side.
  • the method of fixing the rotating shaft 86 can be appropriately selected, but a method of fitting the base side of the rotating shaft 86 to the rotating shaft mounting portion 88 is preferably used.
  • idling can be prevented by forming the base side of the rotating shaft 86 into a polygonal shape or by providing a detent projection on the outer periphery of the base side of the rotating shaft 86.
  • the second rotating body 91 in the rotation assist tool 83 has an outer cylinder portion 92 that covers the outer periphery of the first rotating body 87.
  • the elastically deformed body 93 is spirally attached between the main body portion 89 and the outer cylinder portion 92, and is one in the longitudinal direction.
  • the side here, the left side
  • the other side here, the right side
  • the second rotating body 91 is rotated in the normal direction (here).
  • the second rotating body 91 is deformed from the neutral state to the reduced diameter direction (see FIG.
  • the main body portion 89, and the outer cylinder portion 92, and one side in the longitudinal direction (here, the left side) is It is fixed to the outer peripheral surface of the main body 89, and the other side (here, the right side) is fixed to the inner peripheral surface of the outer cylinder 92, and deforms from the neutral state to the diameter expansion direction when the second rotating body 91 rotates in the normal direction. (See FIG. 22 (A)), and has a second elastically deformed portion 95 that deforms from the neutral state to the reduced diameter direction (see FIG. 22 (B)) when the second rotating body 91 is reversed.
  • the first elastically deformed portion 94 is deformed in the radial direction from the neutral state (the direction in which the first elastically deformed portion 94 winds around the main body portion 89).
  • the second elastically deformed portion 95 is deformed in the diameter-expanding direction from the neutral state (the second elastically deformed portion 95 is deformed in the direction of being wound from the main body portion 89).
  • the pitch of the spiral of the first elastically deformed portion 94 is narrower than that of the neutral state, and the pitch of the spiral of the second elastically deformed portion 95 is wider than that of the neutral state.
  • the part 89) moves toward one side of the second rotating body 91.
  • the first elastically deformed portion 94 is deformed from the neutral state in the diameter-expanding direction (the first elastically deformed portion 94 is wound up from the main body portion 89).
  • the second elastically deformed portion 95 is deformed in the radial direction from the neutral state (the second elastically deformed portion 95 is deformed in the direction of winding around the main body 89).
  • the pitch of the spiral of the first elastically deformed portion 94 is wider than that of the neutral state, and the pitch of the spiral of the second elastically deformed portion 95 is narrower than that of the neutral state.
  • the unit 89) moves toward the other side of the second rotating body 91.
  • the elastic deformed body 93 As the elastic deformed body 93, a metal coil spring is preferably used, but the pitch and the number of turns of the spiral can be appropriately selected. Further, the first elastically deformed portion 94 and the second elastically deformed portion 95 can be formed in a flat shape like a royal fern to reduce the size. The first elastically deformed portion 94 and the second elastically deformed portion 95 may be integrally (continuously) formed, or may be divided at the central portion in the longitudinal direction of the main body portion 89. The ends of the first elastically deformed portion 94 and the second elastically deformed portion 95 on one side and the other side are fixed to the main body portion 89 or the outer cylinder portion 92 by the fixing portion 96, respectively. The shape and fixing method can be appropriately selected.
  • first and second protective plates 97 and 98 are attached to both ends of the second rotating body 91 (outer cylinder portion 92) in the longitudinal direction. Insertion holes 99 through which the main body 89 is inserted are formed in the first and second protective plates 97 and 98.
  • the hole diameter of the insertion hole 99 larger than the outer diameter of the main body 89 (providing a gap between the outer circumference of the main body 89 and the inner circumference of the insertion hole 99)
  • the first rotating body 87 and the second rotating body 89 and the second rotating body 89 are provided.
  • a bearing may be attached instead of providing a gap between the main body 89 and the insertion hole 99. Since the first rotating body 87 (main body portion 89) and the second rotating body 91 (outer cylinder portion 92) are supported by the elastic deformed body 93 so that their axes are substantially aligned with each other, the first rotating body 87 (main body portion 89) and the second rotating body 91 (outer cylinder portion 92) are supported by the elastic deformed body 93. Although either one or both of the second protective plates 97 and 98 can be omitted, by providing these, foreign matter can be prevented from entering the inside of the second rotating body 91, and the elastic deformed body 93 can be formed. It can be protected to improve the stability and durability of the operation of the rotation assist tool 83.
  • the drive means connecting portion 41 for connecting the drive shaft 40 of the rotary drive means (not shown) such as an electric motor is formed on the outside of the second protective plate 98, but the second protective plate It is also possible to omit 98 and provide a drive means connecting portion on the outer cylinder portion 92.
  • the second rotating body 91 is rotated by the rotating driving means, but the driving means connecting portion is connected to the other side of the second rotating body (outer cylinder portion or second protective plate).
  • a handle portion (handle) may be provided instead of the above, and the second rotating body may be manually rotated.
  • the outer cylinder portion may be directly gripped by hand without providing the drive means connecting portion or the handle portion (handle). The second rotating body may be rotated.
  • the assisted rotary tool can be used for various purposes by changing the shape of the output unit.
  • the rotation assist tool 83 can be attached to the base side of the rotation shaft having the input unit on the front side. In that case, the first rotating body can be rotated together with the rotating shaft by the rotational energy input from the input unit, and the rotation can be transmitted to the second rotating body via the elastic deformed body.
  • the rotary tool 101 with an assist provided with the rotation assist tool 100 shown in FIGS. 23 (A) and 23 (B) has a rotation assist on the base side of the rotation shaft 103 having a rotary blade-shaped output unit 102 such as a hand mixer on the front side.
  • the tool 100 is attached.
  • a drive shaft 40 of a rotation drive means (not shown) such as an electric motor is connected to one side of the main body 106 of the first rotating body 104.
  • the drive means connecting portion 41 is formed.
  • a rotating shaft mounting portion 15 to which the portion 18 is fixed is provided. Then, as shown in FIG. 23 (B), the elastically deformed body 108 is spirally attached between the main body portion 106 and the outer cylinder portion 92, and one side in the longitudinal direction (here, the left side) is the outer cylinder portion.
  • the first rotating body 104 rotates in the normal direction (here, the axis of the first rotating body 104). It deforms from the neutral state to the reduced diameter direction on one side of the direction (when rotating clockwise when viewed from the left side of FIG. 23B), and when the first rotating body 104 is reversed (here, the first rotation).
  • a first elastically deformed portion 109 that deforms from a neutral state to a diameter-expanding direction in the axial direction of the body 104 (when rotating counterclockwise when viewed from the left side of FIG. 23B), and the main body 106 and the outside.
  • a second elastically deformed portion 110 that is fixed to and deforms from the neutral state to the diameter-expanding direction when the first rotating body 104 rotates in the normal direction, and deforms from the neutral state to the diameter-reducing direction when the first rotating body 104 rotates in the reverse direction. And have.
  • the shape, structure, material, etc. of the elastic deformed body 108 are the elastic deformed body 93 (first elastic deformed portion 94 and second elastic deformed portion 95). Since it is the same as the above, the description is omitted.
  • the assisted rotary tool 101 rotates the first rotating body 104 with the rotational energy input from the drive shaft 40, transmits the rotation to the second rotating body 107 via the elastic deformed body 108, and second.
  • the rotating shaft 103 can be rotated together with the rotating body 107 to output from the output unit 102.
  • the difference between the rotation assist tool 100 and the rotary tool 101 with assist and the rotation assist tool 83 and the rotary tool 84 with assist described above is only the path of transmission of rotation, and there is no difference in the obtained actions and effects.
  • the rotation assist tool 111 according to the seventh embodiment of the present invention will be described with reference to FIGS. 24, 25 (A), and 25 (B).
  • the rotation assisting tool 111 according to the seventh embodiment of the present invention shown in FIGS. 24, 25 (A), and 25 (B) is attached to the base side of the rotating shaft 112 of the existing bicycle.
  • the rotating shaft 112 is rotatably held by a shaft support 113 provided on a bicycle frame (not shown), and 180 degrees on the front side and the base side of the rotating shaft 112.
  • the left and right crank arms 114 and 115 are attached with a phase difference.
  • a pedal (not shown) is rotatably provided on the front side of each of the crank arms 114 and 115, and the bicycle user (driver) pedals the pedal to rotate the shaft 112 together with the crank arms 114 and 115.
  • an insertion protrusion 112a having a quadrangular cross section is formed on the base side of the rotating shaft 112, and a rotating shaft having a quadrangular cross-section insertion hole 116 into which the insertion projection 112a is inserted is provided on the base side of the crank arm 115.
  • a holding portion 117 is formed, whereby the crank arm 114 and the crank arm 115 are integrated via the rotating shaft 112.
  • the crank arm 114 and the crank arm 115 may be integrated (connected) via a rotating shaft 112, and the structure thereof is not limited to this embodiment and can be appropriately selected.
  • the rotating shaft is thickened to form an insertion hole in the axis of the rotating shaft, and the insertion protrusion formed on the base side of the crank arm is inserted into the insertion hole to connect the rotating shaft and the crank arm. May be good.
  • the rotation assist tool 111 has a first rotating body 119 and a second rotating body 120 held by the first rotating body 119 so as to be rotatable in the forward and reverse directions.
  • the first rotating body 119 has a main body portion 122 formed with a rotating shaft mounting portion 121 to which the base side of the rotating shaft 112 is fixed.
  • the rotary shaft holding portion 117 of the crank arm 115 attached to the base side of the rotary shaft 112 is inserted and fixed to the rotary shaft mounting portion 121, so that the base side of the rotary shaft 112 is interposed via the rotary shaft holding portion 117. It is indirectly fixed to the rotating shaft mounting portion 121.
  • the structure for fixing the base side of the rotating shaft 112 to the rotating shaft mounting portion 121 is not limited to this, and can be appropriately selected depending on the structure of the rotating shaft and the crank arm.
  • the structure in which the rotary shaft and the crank arm are connected by inserting the plug protrusion formed on the base side of the crank arm into the insertion hole formed in the rotary shaft, or the rotary shaft and the crank arm In the case of the integrally formed structure, the base side of the rotating shaft is directly fixed to the rotating shaft mounting portion.
  • a plurality of arcuate space portions 124 that penetrate the main body portion 122 in the axial direction and are concentrically curved around the axial center of the main body portion 122 are formed in the main body portion 122, and the circumference of each space portion 124 is formed.
  • Elastic plasmodium 125a and 125b are housed on one side and the other side in the direction, respectively. The shape and size of each elastic deformed body accommodated on one side and the other side in the circumferential direction of each space portion can be appropriately selected.
  • the second rotating body 120 is housed in the rotating plates 126 and 127 on one side and the other side arranged to face each other on both sides of the main body 122 in the axial direction, and on one side and the other side in the circumferential direction of each space portion 124. It has a plurality of connecting shafts 128 that pass through each of the space portions 124 through between the elastically deformed bodies 125a and 125b and connect the rotating plate 126 on one side and the rotating plate 127 on the other side.
  • the chain ring of the bicycle is used as the rotating plate 126 on one side, but the chain ring may be attached to the rotating plate provided separately.
  • the base side of the rotating shaft 112 penetrates the rotating plate 126 on one side and is fixed to the main body 122, and the second rotating body 120 can rotate forward and reverse with respect to the rotating shaft 112 and the first rotating body 119. It has become.
  • the second rotating body 120 has a cylindrical portion 130 that covers the outer periphery of the first rotating body 119 and connects the rotating plates 126 and 127. As a result, the first rotating body 119 can be protected by the second rotating body 120, preventing foreign matter such as dust from entering the inside of the second rotating body 120, and stable operation is possible. It is supposed to be.
  • the first rotating body 119 rotates together with the rotating shaft 112 by inputting rotational energy from the rotating shaft 112 via the crank arms 114 and 115, and each space.
  • the elastic deformed body 125b is pressed against the connecting shaft 128, and the rotational energy thereof is transmitted to the second rotating body 120 and output from the rotating plate (chain ring) 126. Therefore, while the first rotating body 119 and the second rotating body 120 rotate relatively, the elastic deformed body 125b is elastically deformed to accumulate a part of the input energy at the time of initial movement (at the start of operation). The load can be reduced.
  • the elastic deformed body 125b is appropriately restored to convert the accumulated elastic energy into rotational energy.
  • the second rotating body 120 can be rotated by effectively using the above. Therefore, in a bicycle equipped with the rotation assist tool 111, the input energy can be reduced and the load on the bicycle driver can be reduced. For example, the input energy becomes small or is likely to be interrupted on a slope or the like. However, it is possible to suppress fluctuations in output energy and perform stable driving. Further, the elastic deformed body 125a functions as a damper to prevent the connecting shaft 128 from directly colliding with the main body portion 122.
  • the rotation assist tool 111 is applied to the rotation shaft (drive shaft) of the bicycle.
  • the hand rim is connected to the rotation shaft instead of the crank, and the second is used instead of the chain ring.
  • the wheels are attached via a plurality of spokes provided radially on the outer circumference of the rotating body (cylindrical portion) of the above, the wheel can also be applied to a bicycle. It can also be applied to fishing reels and winches. Further, this rotation assist tool can also be applied to a rotation shaft (drive shaft) of a car or motorcycle driven by a motor or the like.
  • the rotation assist tool 131 according to the eighth embodiment of the present invention will be described with reference to FIGS. 26 and 27.
  • the same reference numerals as those of the seventh embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the rotation assist tool 131 shown in FIGS. 26 and 27 differs from the rotation assist tool 111 in that it is attached to the base side of the rotation shaft (driven shaft) 133 of the rear wheel 132 of the existing bicycle.
  • the chain ring is used as the rotation plate 126 on one side, but in the rotation assist tool 131, the rotation plate 134 is provided on one side of the second rotating body 120, and the second rotating body A plurality of (here, five) sprockets (gears) 135a to 135e for shifting are attached to the outer periphery of the 120 (cylindrical portion 130).
  • the rotating shaft 133 is rotatably supported by a fixed shaft 138 whose both ends are held by the side frames 136a and 136b of the bicycle.
  • rotation assist tool 131 configured as described above, rotation energy is input to the second rotating body 120 via a chain wound around any of the sprocket (gear) 135a to 135e, so that each space In the portion 124, the connecting shaft 128a is pressed against the elastic deformed body 125c, the rotational energy is transmitted to the first rotating body 119, the rotating shaft 133 rotates together with the first rotating body 119, and is output from the rear wheel 132.
  • the elastic deformed body 125c can be elastically deformed and a part of the input energy can be stored, and the rotation assist tool 111 and the rotation assist tool 111 can be stored. Similar actions and effects can be obtained.
  • the cross-sectional shape of the connecting shaft 128a is formed in a semicircular shape or a bullet shape, and the connecting shaft 128a and the elastic deformed body 125c accommodated on one side of each space portion 124 in the circumferential direction.
  • the contact surface of the above is made flat (flat) so that the elastic energy stored in the elastic deformed body 125c can be efficiently used.
  • the shapes of the connecting shaft 128a and the elastically deformed body 125c can also be applied to the rotation assist tool 111.
  • the rotation assist tool 131 is applied to the rotation shaft (driven shaft) 133 of the rear wheel 132 of the bicycle, but the rotation assist tool 131 is the rotation shaft (driven) of the rear wheel of a motorcycle or the like. Axis) can be applied in the same way.
  • the present invention is not limited to the above-described embodiment, and other examples and modifications which can be considered within the scope of the matters described in the claims are also included. Any changes to the conditions that are included and do not deviate from the gist are within the scope of the present invention.
  • the present invention is also applied when the rotation assist tool and the rotary tool with assist are combined to form the rotary assist tool and the rotary tool with assist according to each embodiment.
  • a metal such as stainless steel is preferably used as the material of the parts for which the material is not specified, but it depends on the application and the magnitude of the driving force (torque).
  • the rotation assist tool can be configured as an assisted rotary tool by mounting it on the base side of the rotary shaft of an existing tool or the like.
  • the rotary shaft is a rotary assist tool. It may be detachable, or it may be formed integrally with the rotation assist tool.
  • a rotation assist tool By incorporating a rotation assist tool into the rotation axis of an existing rotating tool or object such as a bicycle, the rotation energy input from the outside is efficiently transmitted to assist the rotation of the rotation axis, and the object is used. While reducing the burden on the user (user) to make effective use of the object, we will popularize assisted rotary tools with excellent operational stability, rotation transmission efficiency and labor saving, and improve work efficiency and production. It can contribute to the improvement of sex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Manipulator (AREA)
  • Prostheses (AREA)
  • Toys (AREA)
  • Transmission Devices (AREA)
PCT/JP2020/039779 2019-10-23 2020-10-22 回転アシスト具及びアシスト付き回転工具 WO2021079949A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20879183.0A EP4049792A4 (en) 2019-10-23 2020-10-22 ROTARY SUPPORT TOOL AND ROTARY SUPPORTED MOUNT TOOL
US17/620,280 US20220364608A1 (en) 2019-10-23 2020-10-22 Rotation assist tool and assist-attached rotation tool
CN202080044356.9A CN114007815B (zh) 2019-10-23 2020-10-22 旋转辅助器具以及带辅助件的旋转工具
CA3154531A CA3154531A1 (en) 2019-10-23 2020-10-22 Rotation assist tool and assist-attached rotation tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-192866 2019-10-23
JP2019192866A JP6718007B1 (ja) 2019-10-23 2019-10-23 回転アシスト具及びアシスト付き回転工具

Publications (1)

Publication Number Publication Date
WO2021079949A1 true WO2021079949A1 (ja) 2021-04-29

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PCT/JP2020/039779 WO2021079949A1 (ja) 2019-10-23 2020-10-22 回転アシスト具及びアシスト付き回転工具

Country Status (7)

Country Link
US (1) US20220364608A1 (zh)
EP (1) EP4049792A4 (zh)
JP (1) JP6718007B1 (zh)
CN (1) CN114007815B (zh)
CA (1) CA3154531A1 (zh)
TW (1) TWI753621B (zh)
WO (1) WO2021079949A1 (zh)

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JPS5473596U (zh) 1977-11-04 1979-05-25
JPH0446221A (ja) * 1990-06-12 1992-02-17 Sugisaki Keiki Kk 回転慣性力緩衝器
JPH11170880A (ja) * 1997-12-11 1999-06-29 Kawasaki Heavy Ind Ltd 動力伝達機構
JP2014145437A (ja) * 2013-01-30 2014-08-14 Honda Motor Co Ltd 車両のドライブシャフト
JP2019094967A (ja) * 2017-11-22 2019-06-20 ▲浜▼元 陽一郎 回転伝達機構及びそれを備えた車椅子

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Also Published As

Publication number Publication date
US20220364608A1 (en) 2022-11-17
TW202128362A (zh) 2021-08-01
TWI753621B (zh) 2022-01-21
JP6718007B1 (ja) 2020-07-08
CN114007815A (zh) 2022-02-01
JP2021065970A (ja) 2021-04-30
EP4049792A1 (en) 2022-08-31
CA3154531A1 (en) 2021-04-29
EP4049792A4 (en) 2023-12-13
CN114007815B (zh) 2023-08-01

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